Sheave-block.



. J. A. LOGKFAW.

sHEAvE BLOCK. A'PPL-IOATIOH FILED JAN. 19, 1910.

I! It! f w ATTORNEYS UNITED srnfrns ParitairV onirica.

JOHN ANTHONY LOCKFAW, 0F WILMINGTON, NORTH CAROLINA.

SHEAVE-BLOCK.

specification of Leiters raient.

Application led January 19, 1910.

To all whom it may concern:

Be it known that I, JOHN A. LooKFAW, a citizen of the United States, and a resident of Wilmington, in the county of New Hanover and State of North Carolina, have invented a new and Improved Sheave-Block, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved sheave block, for use on board ship, on logging machinery', etc., and which is simple and durable 1n construction, exceedingly strong, not liable easily to get out of order, and arranged. to insure vproper oiling.

For the purpose mentioned, a top cross bar is engaged by the ends of U-shaped bolts engaging side pieces, andv an axle on which `the sheave is mounted to turn.

l Fig. 1.

A sheave or jJulley A, is mounted to turn on a {ixed axle B, engaged on opposite sides ot the sheave A L y sectional side pieces, each formed of a top side piece C and a bottom side piece or cap C', as plainly indicated in the drawings. The side pieces C, C are provided along their edges with grooves en-V gaged oy U-shaped bolts D, also engaging a top cross piece E pr; vided with a hook F,

fixed or mounted to turn in the cross piece E.

The top cross pieces C abut against the under side of the top cross piece E, so that Whenthe nuts of the bolts'l) are screwed up, the side pieces are securely held in place, thus firmly supporting the axle B. The side arxns of the 'bolts D extend through grooves formed in the sides of the axle B, so that the latter is held against turning in the side pieces C, C. It 'is understood that the side pieces-G and C are providedvvith semicircular grooves, fitting onto the top and loottom portions of the axle B, to form atirm bearing for the outer ends of theaxle B.

Each of the top side'pieces C is provided with a vertically disposed oil Well hole C2,

'Patented July 12, 191e.

Serial No. 538,825.

registering at its lower end with a U-shaped channel B having an outlet B2 and formed in the axle B, and the upper end C ot each oil Well C9 extends to the outer face of the corresponding top side piece C, to permit oi filling the o'il Well hole With oil and waste, thus insuring a proper oiling of the sheave A on the axle B, it being understood that the oil readily passes out of the oil Well. out- 1 it in the bottom of the axle B, to oil the contacting surfaces of the sheave A and the axle B.

The sheave block shown and described is Very simple and durable in construction, and the several parts forming the bloeit proper are securely fastened together so as to render the block exceedingly strong and durable.

Having thus described my invention, I claim as'new and desire to secure by Letters Patent:

1. A sheave block, comprising a sheave, an axle for the sheave to turn on and provided near the ends with grooves, sectional side pieces engaging the .sa-idaxle and having grooves, a cross bar for the side pieces tn abut against, and U-shaped bolts engaging the said cross bar and the grooves in the said axle and side pieces lo fasten the parts together.

2. A sheave block, comprising a sheavc, an axle for the sheave to turn ou and provided near the endsI with grooves. the axle having a U-shapod channel provided with an outlet, sectional sido pieces engaging the said axle and having grootes, the upper sccn tions ot' the said 'side pieces having oil well holes in iegistcr with the ends ofv the said channel in the said axle, a cross har for thel side pieces to abut against, and U-shaped bolts engaging the said cross bar and .the grooves in the .said axle and side pit-ces, to tasten the parts together.

lu a sheavo block, au axle 'for the sheavo to tui-umn,sectional .side pieces en gaging the axle at cach und thereof, the

vaxle being lwtwecn the sections of the side the cross piece, the edges of the sections being` grooved` to receive the bolts, the axle having a U-Shaped passage and the upper section of each side piece lia/ving a passage adapted to register with one end of the pas- .sage in the axle, the said passage opening at the side of the side piece. 

